package com.bestdreamer.example.atomic;

import com.bestdreamer.annoations.ThreadSafe;
import lombok.Getter;
import lombok.extern.slf4j.Slf4j;

import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;

@Slf4j
@ThreadSafe
public class AtomicExample5 {

    private static final AtomicIntegerFieldUpdater<AtomicExample5> updater = AtomicIntegerFieldUpdater.newUpdater(AtomicExample5.class,"count");

    @Getter
    public volatile int count = 100;


    public static void main(String[] args){

        AtomicExample5 example5 = new AtomicExample5();

        if(updater.compareAndSet(example5,100,120)){
            System.out.println("update success1:" + example5.getCount());
        }
        if(updater.compareAndSet(example5,100,120)){
            System.out.println("update success2:" + example5.getCount());
        }else {
            System.out.println("update failed:" + example5.getCount());
        }
    }

}
